智能化太阳能LED路灯的研究与设计

发布时间：2018-05-12 18:02

本文选题：太阳能路灯 + MPPT　；参考：《太原科技大学》2014年硕士论文

【摘要】：光伏发电是开发“绿色能源”的一种重要形式，LED照明是未来照明领域的发展方向，太阳能LED路灯将光伏发电和LED照明结合在一起，，既达到了节能减排的目的，又能为偏远无电网地区提供一种低成本的照明方式。因此，研究与设计太阳能LED路灯系统具有重要意义。本文的目的是设计一台智能化充放电控制器，包括带MPPT功能的充电部分和LED恒流驱动部分。通过深入分析太阳能电池、蓄电池和LED的基本特性，设计了基于Buck变换器，对蓄电池进行MPPT、恒压、恒流相结合的三阶段充电方法；以及设计了基于Boost变换器的LED恒流驱动，并实现了一种渐进的PWM调光方法以及根据路面照明情况定时分配LED路灯照明功率的智能化节能控制方法。完成了基于dsPIC33FJ16GS502的太阳能LED路灯系统硬件设计，利用C语言编写了相应的控制程序，实现了预期的智能化充放电控制功能。通过对实验数据和实验波形的分析证明，本文采用的设计方案很好的实现太阳能LED路灯的智能化控制，达到了预期的效果。
[Abstract]:Photovoltaic power generation is an important form of developing "green energy". LED lighting is the direction of the future lighting field. Solar LED street lamp combines photovoltaic power generation with LED lighting to achieve the purpose of energy saving and emission reduction. It can also provide a low-cost lighting for remote unconnected areas. Therefore, it is of great significance to study and design solar LED street lamp system. The purpose of this paper is to design an intelligent charging and discharging controller, including charging part with MPPT function and constant current driving part of LED. Through in-depth analysis of the basic characteristics of solar cells, batteries and LED, a three-stage charging method based on Buck converter is designed, which combines MPPTT, constant voltage and constant current, and LED constant current driver based on Boost converter is designed. A progressive PWM dimming method and an intelligent energy saving control method for distributing the lighting power of LED street lamp according to the road lighting condition are implemented. The hardware design of solar energy LED street lamp system based on dsPIC33FJ16GS502 is completed, and the corresponding control program is written by C language. The expected intelligent charging and discharging control function is realized. Through the analysis of the experimental data and the experimental waveform, it is proved that the design scheme adopted in this paper can realize the intelligent control of the solar LED street lamp well and achieve the desired effect.
【学位授予单位】：太原科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM923.34

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